US20080258584A1 - Motor and control circuit thereof - Google Patents
Motor and control circuit thereof Download PDFInfo
- Publication number
- US20080258584A1 US20080258584A1 US12/029,351 US2935108A US2008258584A1 US 20080258584 A1 US20080258584 A1 US 20080258584A1 US 2935108 A US2935108 A US 2935108A US 2008258584 A1 US2008258584 A1 US 2008258584A1
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- winding
- sensor chips
- motor
- control circuit
- electrically connected
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- 238000004804 winding Methods 0.000 claims abstract description 94
- 229910000976 Electrical steel Inorganic materials 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
Definitions
- the present invention relates to a motor and a control circuit thereof and in particular to a motor controlled by multiple sensor chips and a control circuit thereof.
- FIG. 1 is a schematic illustration showing a conventional motor 1 .
- the motor 1 has a rotor 11 and a stator 12 .
- the rotor 11 has many magnetic poles including two N poles and two S poles arranged alternately.
- the stator 12 is composed of a plurality of silicon steel sheets stacked together, and the stator 12 has a plurality of winding sensing arms disposed opposite to the magnetic poles.
- FIG. 2 is a schematic illustration showing a control circuit 13 of the motor 1 of FIG. 1 .
- the control circuit 13 includes a sensor chip 131 and a winding set 132 .
- the sensor chip 131 of the control circuit 13 has a positive power input terminal V + and a negative power input terminal V ⁇ , the positive power input terminal V + is electrically connected to a positive power V CC , and the negative power input terminal V ⁇ is electrically connected to a ground V ground .
- the sensor chip 131 has two output ports A and B.
- the winding set 132 has a first winding L 1 and a second winding L 2 , which are respectively electrically connected to the output ports A and B.
- the sensor chip 131 senses magnetic properties of the magnetic poles of the rotor to change the directions of the currents flowing through the first winding L 1 and the second winding L 2 to make the winding sensing arms generate magnetic forces to push the rotor 11 to rotate.
- one control circuit for controlling the conventional motor only has a sensor chip.
- one sensor chip needs to control the winding sets of the whole motor to provide the currents for the windings. Because the typical sensor chip cannot withstand the extra high current, this control circuit cannot be applied to the motor having high rotating speed, or the large size motor. Thus, the sensor chip for controlling the motor having the high rotating speed, or the large size motor must have the higher current withstanding ability, and this sensor chip usually has the higher cost.
- the present invention is to provide a motor to have a high current withstanding ability and a control circuit thereof.
- the present invention discloses a control circuit of a motor.
- the control circuit includes at least two sensor chips and at least two winding sets.
- Each of the winding sets has a first winding and a second winding.
- a first end of the first winding and a first end of the second winding of each winding set are electrically connected to each other, and a second end of the first winding and the second winding of each winding set are electrically connected to the sensor chips correspondingly.
- the present invention also discloses a motor including a rotor, a stator and a control circuit.
- the rotor has a plurality of magnetic poles.
- the stator is composed of a plurality of silicon steel sheets stacked together and has at least two sensing arms corresponding to the magnetic poles.
- the control circuit includes at least two sensor chips electrically connected to each other, and at least two winding sets.
- Each of the winding sets has a first winding and a second winding. A first end of the first winding and a first end of the second winding of each winding set are electrically connected to each other, and a second end of the first winding and a second end of the second windings of each winding set are electrically connected to the sensor chips correspondingly.
- the first windings and the second windings are respectively wound around the sensing arms of the silicon steel sheets
- the motor and control circuit of the present invention have the following features.
- the number of the sensor chips in the control circuit is increased so that one sensor chip only controls a part of the winding sets.
- each sensor chip only has to withstand the current of the part of the winding sets so that the current withstanding ability of the sensor chip can be reduced.
- the sensor chip with the low current withstanding ability can also be adapted to the motor having the high rotating speed, or to the large size motor.
- the control circuit since the control circuit has multiple sensor chips, when one of the sensor chips fails, the other sensor chip can serve as a backup chip to keep the motor operating.
- FIG. 1 is a schematic illustration showing a conventional motor
- FIG. 2 is a schematic illustration showing a control circuit of the motor of FIG. 1 ;
- FIG. 3 is a schematic illustration showing a motor according to an embodiment of the present invention.
- FIG. 4 is a three-dimensional diagram showing the motor of FIG. 3 ;
- FIG. 5 is a schematic illustration showing the control circuit of the motor of FIG. 3 ;
- FIG. 6 is a schematic illustration showing a motor according to another embodiment of the present invention.
- FIG. 7 is a schematic illustration showing the control circuit of the motor of FIG. 6 .
- FIG. 3 is a schematic illustration showing a motor 2 according to an embodiment of the present invention.
- FIG. 4 is a three-dimensional diagram showing the motor 2 of FIG. 3 .
- the motor 2 includes a rotor 21 , a stator 22 and a control circuit 23 .
- the rotor 21 has a plurality of magnetic poles including N poles and S poles arranged alternately.
- the rotor 21 has four magnetic poles 211 , 212 , 213 and 214 , wherein the poles 211 and 213 are the N poles and the poles 212 and 214 are the S poles.
- the stator 22 is composed of a plurality of silicon steel sheets stacked together.
- each silicon steel sheet has at least two sensing arms, and the sensing arms of the silicon steel sheets are respectively disposed opposite and correspond to the magnetic poles.
- the number of the magnetic poles of the rotor is equal to 2, 4, 6, 8, 10, . . .
- the number of the sensing arms of the stator is also correspondingly equal to 2, 4, 6, 8, 10, . . . .
- each of the silicon steel sheets of the stator 22 also corresponds to the corresponding magnetic pole of the rotor 21 and thus has four sensing arms 221 , 222 , 223 and 224 .
- the control circuit 23 includes a first sensor chip 231 , a second sensor chip 232 , a first winding set 233 and a second winding set 234 .
- the first sensor chip 231 has a positive power input terminal V 1+
- the second sensor chip 232 has a positive power input terminal V 2+
- the positive power input terminals V 1+ and V 2+ are electrically connected to a positive power V CC .
- the first sensor chip 231 has two output ports A 1 and B 1
- the second sensor chip 232 has two output ports A 2 and B 2 .
- each of the sensor chips is a Hall integrated circuit (Hall IC).
- each of the sensor chips 231 and 232 can be, for example but not limited to, the Hall IC having three pins according to different demands.
- first winding set 233 has a first winding L 1 and a second winding L 2
- second winding set 234 has a third wire L 3 and a fourth wire L 4 .
- the first end of the first winding L 1 and the first end of the second winding L 2 are electrically connected to a common end V COM1
- the second end of the first winding L 1 and the second end of the second winding L 2 are respectively electrically connected to the output ports A 1 and B 1 .
- first end of the third wire L 3 and the first end of the fourth wire L 4 are electrically connected to a common end V COM2
- second end of the third wire L 3 and the second end of the fourth wire L 4 are respectively electrically connected to the output ports A 2 and B 2 .
- the directions of currents flowing through the winding sets 233 and 234 make the sensing arms 221 , 222 , 223 and 224 generate magnetic forces to push the rotor 21 to rotate.
- the sensor chips 231 and 232 respectively control the directions of the currents flowing through the winding sets 233 and 234 , and the sensor chips 231 and 232 simultaneously sense the magnetic properties of the magnetic poles 211 , 212 , 213 and 214 of the rotor 21 to determine to turn on the output ports A 1 or B 1 , A 2 or B 2 or not. According to this action, the directions of the currents flowing through the winding sets 233 and 234 are changed, and the magnetic properties of the sensing arms 221 , 222 , 223 and 224 are thus changed.
- control circuit 23 of the motor 2 has the two sensor chips 231 and 232 .
- the other sensor chip can serve as a backup chip to keep the motor 2 continuously operating.
- a motor 3 includes a rotor 31 , a stator 32 and a control circuit 33 .
- the rotor 31 has a plurality of magnetic poles.
- the stator 32 is composed of a plurality of silicon steel sheets stacked together, and each silicon steel sheet has at least two sensing arms. The sensing arms of the silicon steel sheets are respectively disposed opposite and correspond to the magnetic poles.
- the rotor 31 has eight magnetic poles 311 , 312 , 313 , 314 , 315 , 316 , 317 and 318
- the stator 32 also has eight sensing arms 321 , 322 , 323 , 324 , 325 , 326 , 327 and 328 in correspondence with the rotor 31 .
- the magnetic poles 311 , 313 , 315 and 317 are N poles
- the poles 312 , 314 , 316 , and 318 are S poles
- the N and S poles are arranged alternately.
- the control circuit 33 includes four sensor chips 331 , 332 , 333 and 334 and four winding sets 335 , 336 , 337 and 338 .
- the sensor chips 331 , 332 , 333 and 334 respectively have positive power input terminals V 1+ , V 2+ , V 3+ , and V 4+ and negative power input terminal V 1 ⁇ , V 2 ⁇ , V 3 ⁇ and V 4 ⁇ , and further have several output ports A 1 , A 2 , A 3 , A 4 , B 1 , B 2 , B 3 and B 4 .
- Each of the winding sets 335 , 336 , 337 and 338 has a first winding and a second winding, and the first end of the first windings and the first end of the second windings are respectively electrically connected to common ends V COM1 , V COM2 , V COM3 and V COM4 .
- the second end of the first windings and the second end of the second windings are electrically connected to the corresponding output ports.
- the motor 3 and the control circuit 33 thereof are similar as those of the motor 2 and the control circuit 23 , so detailed descriptions thereof will be omitted.
- the motor 3 controls four winding sets by using four sensor chips
- the motor 2 controls two winding sets by using two sensor chips. Consequently, the motor which can afford high current can be controlled by using more than two sensor chips in conjunction with the corresponding winding sets.
- the motor of the present invention is not restricted to the motor including two sensor chips for correspondingly controlling two winding sets. Also, two sensor chips can correspondingly control 4 , 6 , 8 , 10 , . . . winding sets according to the different circuit designs.
- the motor and control circuit of the present invention have the following features.
- the number of the sensor chips in the control circuit is increased so that one sensor chip only controls a part of the winding sets.
- each sensor chip only has to withstand the current of the part of the winding sets so that the current withstanding ability of the sensor chip can be reduced.
- the sensor chip with the low current withstanding ability can also be adapted to the motor having the high rotating speed, or to a large size motor.
- the other sensor chip can serve as a backup chip to keep the motor operating because the control circuit has multiple sensor chips.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Brushless Motors (AREA)
Abstract
Description
- This Non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application Ser. No(s). 096113437, filed in Taiwan, Republic of China on Apr. 17, 2007, the entire contents of which are hereby incorporated by reference.
- 1. Field of Invention
- The present invention relates to a motor and a control circuit thereof and in particular to a motor controlled by multiple sensor chips and a control circuit thereof.
- 2. Related Art
-
FIG. 1 is a schematic illustration showing aconventional motor 1. Referring toFIG. 1 , themotor 1 has arotor 11 and astator 12. Therotor 11 has many magnetic poles including two N poles and two S poles arranged alternately. Thestator 12 is composed of a plurality of silicon steel sheets stacked together, and thestator 12 has a plurality of winding sensing arms disposed opposite to the magnetic poles. -
FIG. 2 is a schematic illustration showing acontrol circuit 13 of themotor 1 ofFIG. 1 . Referring toFIG. 2 , thecontrol circuit 13 includes asensor chip 131 and awinding set 132. Thesensor chip 131 of thecontrol circuit 13 has a positive power input terminal V+ and a negative power input terminal V−, the positive power input terminal V+ is electrically connected to a positive power VCC, and the negative power input terminal V− is electrically connected to a ground Vground. In addition, thesensor chip 131 has two output ports A and B. Thewinding set 132 has a first winding L1 and a second winding L2, which are respectively electrically connected to the output ports A and B. - The
sensor chip 131 senses magnetic properties of the magnetic poles of the rotor to change the directions of the currents flowing through the first winding L1 and the second winding L2 to make the winding sensing arms generate magnetic forces to push therotor 11 to rotate. - As mentioned above, one control circuit for controlling the conventional motor only has a sensor chip. Thus, one sensor chip needs to control the winding sets of the whole motor to provide the currents for the windings. Because the typical sensor chip cannot withstand the extra high current, this control circuit cannot be applied to the motor having high rotating speed, or the large size motor. Thus, the sensor chip for controlling the motor having the high rotating speed, or the large size motor must have the higher current withstanding ability, and this sensor chip usually has the higher cost.
- In view of the foregoing, the present invention is to provide a motor to have a high current withstanding ability and a control circuit thereof.
- To achieve the above, the present invention discloses a control circuit of a motor. The control circuit includes at least two sensor chips and at least two winding sets. Each of the winding sets has a first winding and a second winding. A first end of the first winding and a first end of the second winding of each winding set are electrically connected to each other, and a second end of the first winding and the second winding of each winding set are electrically connected to the sensor chips correspondingly.
- To achieve the above, the present invention also discloses a motor including a rotor, a stator and a control circuit. The rotor has a plurality of magnetic poles. The stator is composed of a plurality of silicon steel sheets stacked together and has at least two sensing arms corresponding to the magnetic poles. The control circuit includes at least two sensor chips electrically connected to each other, and at least two winding sets. Each of the winding sets has a first winding and a second winding. A first end of the first winding and a first end of the second winding of each winding set are electrically connected to each other, and a second end of the first winding and a second end of the second windings of each winding set are electrically connected to the sensor chips correspondingly. The first windings and the second windings are respectively wound around the sensing arms of the silicon steel sheets
- As mentioned above, the motor and control circuit of the present invention have the following features. The number of the sensor chips in the control circuit is increased so that one sensor chip only controls a part of the winding sets. Thus, each sensor chip only has to withstand the current of the part of the winding sets so that the current withstanding ability of the sensor chip can be reduced. According to the combinations of several sensor chips, the sensor chip with the low current withstanding ability can also be adapted to the motor having the high rotating speed, or to the large size motor. In addition, since the control circuit has multiple sensor chips, when one of the sensor chips fails, the other sensor chip can serve as a backup chip to keep the motor operating.
- The present invention will become more fully understood from the detailed description and accompanying drawings, which are given for illustration only, and thus are not limitative of the present invention, and wherein:
-
FIG. 1 is a schematic illustration showing a conventional motor; -
FIG. 2 is a schematic illustration showing a control circuit of the motor ofFIG. 1 ; -
FIG. 3 is a schematic illustration showing a motor according to an embodiment of the present invention; -
FIG. 4 is a three-dimensional diagram showing the motor ofFIG. 3 ; -
FIG. 5 is a schematic illustration showing the control circuit of the motor ofFIG. 3 ; -
FIG. 6 is a schematic illustration showing a motor according to another embodiment of the present invention; and -
FIG. 7 is a schematic illustration showing the control circuit of the motor ofFIG. 6 . - The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
-
FIG. 3 is a schematic illustration showing amotor 2 according to an embodiment of the present invention.FIG. 4 is a three-dimensional diagram showing themotor 2 ofFIG. 3 . Referring toFIGS. 3 and 4 , themotor 2 includes arotor 21, astator 22 and acontrol circuit 23. - The
rotor 21 has a plurality of magnetic poles including N poles and S poles arranged alternately. In this embodiment, therotor 21 has fourmagnetic poles poles poles - The
stator 22 is composed of a plurality of silicon steel sheets stacked together. Herein, each silicon steel sheet has at least two sensing arms, and the sensing arms of the silicon steel sheets are respectively disposed opposite and correspond to the magnetic poles. For example, if the number of the magnetic poles of the rotor is equal to 2, 4, 6, 8, 10, . . . , the number of the sensing arms of the stator is also correspondingly equal to 2, 4, 6, 8, 10, . . . . In this embodiment, each of the silicon steel sheets of thestator 22 also corresponds to the corresponding magnetic pole of therotor 21 and thus has foursensing arms - As shown in
FIG. 5 , thecontrol circuit 23 includes afirst sensor chip 231, asecond sensor chip 232, afirst winding set 233 and asecond winding set 234. Thefirst sensor chip 231 has a positive power input terminal V1+, thesecond sensor chip 232 has a positive power input terminal V2+, and the positive power input terminals V1+ and V2+ are electrically connected to a positive power VCC. In addition, thefirst sensor chip 231 has two output ports A1 and B1, and thesecond sensor chip 232 has two output ports A2 and B2. - In addition, the
first sensor chip 231 and thesecond sensor chip 232 further respectively have a negative power input terminal V1− and a negative power input terminal V2 in this embodiment, and the negative power input terminals V1− and V2− are electrically connected to a ground Vground. In this embodiment, each of the sensor chips is a Hall integrated circuit (Hall IC). In addition, each of thesensor chips - Furthermore, the first winding set 233 has a first winding L1 and a second winding L2, and the second winding set 234 has a third wire L3 and a fourth wire L4. The first end of the first winding L1 and the first end of the second winding L2 are electrically connected to a common end VCOM1, and the second end of the first winding L1 and the second end of the second winding L2 are respectively electrically connected to the output ports A1 and B1. Similarly, the first end of the third wire L3 and the first end of the fourth wire L4 are electrically connected to a common end VCOM2, and the second end of the third wire L3 and the second end of the fourth wire L4 are respectively electrically connected to the output ports A2 and B2.
- The operations of the
motor 2 will be described with reference toFIGS. 3 and 5 so as to make the effects and technological features of the present invention more apparent. - In the
motor 2, the directions of currents flowing through the windingsets arms rotor 21 to rotate. The sensor chips 231 and 232 respectively control the directions of the currents flowing through the windingsets sensor chips magnetic poles rotor 21 to determine to turn on the output ports A1 or B1, A2 or B2 or not. According to this action, the directions of the currents flowing through the windingsets arms - In addition, the
control circuit 23 of themotor 2 has the twosensor chips motor 2 continuously operating. - Referring to
FIGS. 6 and 7 , a motor 3 according to another embodiment of the present invention includes arotor 31, astator 32 and a control circuit 33. Therotor 31 has a plurality of magnetic poles. Thestator 32 is composed of a plurality of silicon steel sheets stacked together, and each silicon steel sheet has at least two sensing arms. The sensing arms of the silicon steel sheets are respectively disposed opposite and correspond to the magnetic poles. In this embodiment, therotor 31 has eightmagnetic poles stator 32 also has eight sensingarms rotor 31. Themagnetic poles poles - Referring again to
FIG. 7 , the control circuit 33 includes foursensor chips sets sets - The effects and technological features of the motor 3 and the control circuit 33 thereof are similar as those of the
motor 2 and thecontrol circuit 23, so detailed descriptions thereof will be omitted. It is to be noted that the motor 3 controls four winding sets by using four sensor chips, and themotor 2 controls two winding sets by using two sensor chips. Consequently, the motor which can afford high current can be controlled by using more than two sensor chips in conjunction with the corresponding winding sets. In addition, the motor of the present invention is not restricted to the motor including two sensor chips for correspondingly controlling two winding sets. Also, two sensor chips can correspondingly control 4, 6, 8, 10, . . . winding sets according to the different circuit designs. - In summary, the motor and control circuit of the present invention have the following features. The number of the sensor chips in the control circuit is increased so that one sensor chip only controls a part of the winding sets. Thus, each sensor chip only has to withstand the current of the part of the winding sets so that the current withstanding ability of the sensor chip can be reduced. According to the combinations of several sensor chips, the sensor chip with the low current withstanding ability can also be adapted to the motor having the high rotating speed, or to a large size motor. In addition, when one of the sensor chips fails, the other sensor chip can serve as a backup chip to keep the motor operating because the control circuit has multiple sensor chips.
- Although the present invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the present invention.
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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TW96113437A | 2007-04-17 | ||
TW096113437A TWI342664B (en) | 2007-04-17 | 2007-04-17 | Motor and control circiut thereof |
TW096113437 | 2007-04-17 |
Publications (2)
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US20080258584A1 true US20080258584A1 (en) | 2008-10-23 |
US7863852B2 US7863852B2 (en) | 2011-01-04 |
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Application Number | Title | Priority Date | Filing Date |
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US12/029,351 Active 2029-01-17 US7863852B2 (en) | 2007-04-17 | 2008-02-11 | Motor and control circuit thereof |
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US (1) | US7863852B2 (en) |
JP (1) | JP4806423B2 (en) |
TW (1) | TWI342664B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102263471A (en) * | 2010-05-24 | 2011-11-30 | 蔡国法 | Brushless driving motor of vehicle |
GB2483177A (en) * | 2011-10-19 | 2012-02-29 | Protean Electric Ltd | Electric motor or generator having first and second sensors mounted on stator |
US20120280680A1 (en) * | 2011-05-06 | 2012-11-08 | Kuo Kuei-Wei | Hall integrated circuit package |
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US5821660A (en) * | 1997-03-05 | 1998-10-13 | Mts Systems Corporation | Brushless direct current motor having adjustable motor characteristics |
US6271638B1 (en) * | 1992-04-06 | 2001-08-07 | General Electric Company | Brushless D. C. motor and control assembly |
US6791226B1 (en) * | 2003-09-10 | 2004-09-14 | Wavecrest Laboratories, Llc | Multiphase motor winding topology and control |
US7304446B2 (en) * | 2005-02-04 | 2007-12-04 | Foxconn Technology Co., Ltd. | Sensorless and brushless DC motor |
US7459876B2 (en) * | 2004-03-05 | 2008-12-02 | Delta Electronics, Inc. | Motors and control methods thereof |
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JPS5526081A (en) * | 1978-08-15 | 1980-02-25 | Toshiba Corp | Driver for commutatorless motor |
JPS61167388A (en) * | 1985-01-18 | 1986-07-29 | Nec Corp | Rotation starter of gyro device |
JPH01164289A (en) * | 1987-12-18 | 1989-06-28 | Secoh Giken Inc | One-phase semiconductor motor |
JPH05276783A (en) * | 1992-03-23 | 1993-10-22 | Matsushita Electric Ind Co Ltd | Speed signal detector for motor |
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- 2008-02-25 JP JP2008043365A patent/JP4806423B2/en active Active
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US3743902A (en) * | 1972-06-09 | 1973-07-03 | United Aircraft Corp | Brushless dc motor |
US6271638B1 (en) * | 1992-04-06 | 2001-08-07 | General Electric Company | Brushless D. C. motor and control assembly |
US5821660A (en) * | 1997-03-05 | 1998-10-13 | Mts Systems Corporation | Brushless direct current motor having adjustable motor characteristics |
US6791226B1 (en) * | 2003-09-10 | 2004-09-14 | Wavecrest Laboratories, Llc | Multiphase motor winding topology and control |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102263471A (en) * | 2010-05-24 | 2011-11-30 | 蔡国法 | Brushless driving motor of vehicle |
US20120280680A1 (en) * | 2011-05-06 | 2012-11-08 | Kuo Kuei-Wei | Hall integrated circuit package |
GB2483177A (en) * | 2011-10-19 | 2012-02-29 | Protean Electric Ltd | Electric motor or generator having first and second sensors mounted on stator |
CN103066756A (en) * | 2011-10-19 | 2013-04-24 | 普罗蒂恩电子有限公司 | Electric motor or generator |
GB2483177B (en) * | 2011-10-19 | 2013-10-02 | Protean Electric Ltd | An electric motor or generator |
KR20140079833A (en) * | 2011-10-19 | 2014-06-27 | 프로틴 일렉트릭 리미티드 | An electric motor or generator |
WO2013057614A3 (en) * | 2011-10-19 | 2015-01-08 | Protean Electric Limited | An electric motor or generator |
JP2015507910A (en) * | 2011-10-19 | 2015-03-12 | プロティアン エレクトリック リミテッド | Electric motor or generator |
US9431939B2 (en) | 2011-10-19 | 2016-08-30 | Protean Electric Limited | Electric motor or generator |
KR101673900B1 (en) | 2011-10-19 | 2016-11-08 | 프로틴 일렉트릭 리미티드 | An electric motor or generator |
Also Published As
Publication number | Publication date |
---|---|
JP4806423B2 (en) | 2011-11-02 |
JP2008271774A (en) | 2008-11-06 |
TW200843324A (en) | 2008-11-01 |
US7863852B2 (en) | 2011-01-04 |
TWI342664B (en) | 2011-05-21 |
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